Valve apparatus



April 11, 1939. D. D. GOLDBERG ET AL 2,153,385

. VVALVE APPARATUS Filed July 6, 1935 4 Sheets-Sheet l I J! f; di I i 53 if (5 r ,O i7

W \fl'u Tl Ii fl/Z Q i 4% 3 r T jg v v 4'7 21 if g fi H INVENTOR.

fi ararziifiz'wd/la Wag ATTORNEY.

April 11, 1939. D, GOLDBERG ET AL 2,153,885

VALVE APPARATUS Filed July 6, 1935 4 Sheets-Sheet 2 INVIEENTOR.

BY m

ATTORNEY.

p 11, 1939. D. D. DDDDDDDD D A 2,153,88

VALVE APPARATUS Filed July 6, 1935 4 Sheets-Sheet 3 ATTORNEY.

. D. D. GOLDBERG ET Al. 85

April 11, 1939.

I VALVE APPARATUS Filed July 6, 1935 4 Sheets-Sheet 4 INVENT OR.

zfwmfzfizy ATTORNEY.

I Patented Apr. 11, 1939 2,153,885

UNITED STATES PATENT OFFICE VALVE APPARATUS David'D. Goldberg,Springfield, and Aaron R. Kligman, Indian Orchard, Mass., assignors, bydirect and mesne assignments, to Chapman Valve Manufacturing Company,Indian Or-- chard, Mass., a corporation of Massachusetts ApplicationJuly 6, 1935, Serial No. 30,055 8 Claims. (Cl. 251-97) v This inventionrelatesto improvements in valve accessible adjustments for aligning theplug in apparatus and is directed more particularly to the properposition for wedging in both its fully improvements in a valve structurehaving a plug open or fully closed position.

adapted to function in a novel manner and op- Another feature of theinvention is the proerating means therefor. vision for easily adjustingthe amount of wedg- 5 One object of the invention is the provision inggiven to the plug in both the open and closed of a valve apparatus inwhich a conical plug position. member is reciprocable between the wedgedand Various other novel features and advantages of unwedged position andis rotatable between open the invention will be fully described andreferred O and closed positions, all to the end that the said to inconnection with the accompanying descripplug may be wedged in the bodyin either an tion of the preferred form of the invention, refopen orclosed position. The wedging of the erence being made to theaccompanying drawplug provides a tight, metal-to-metal contact of ings,wherein: the plug and body to seal the plug in the body Fig. 1 is asectional elevation through a. valve and thereby prevent fluid passingtherearound so apparatus embodying the novel features of the that thevalve in the fully open position afiords invention; a continuouspipelike fluidway, confining the flow Fig. 2 is a sectional elevationalview through within this pipelike fiuidway and eliminating the acylinder showing a piston for actuating the possibility of the fluid inmotion surrounding the operating mechanism shown in Figs. 1 and 3;

plug which often causes sticking of the plug, cor- Fig. 3 is a sectionalplan view on the line 3% 20 rosion of the'parts and other injuriouseffects. of Fig. 1 at a slightly larger scale;

As one special feature of the improved strucgs. 5 and 6 are diagrammat cD1911 ews ture, the plug is pivoted or journalled in the body showingthe plug operating mechanism of the inat its upper andlower ends bymeans of pivots vention in various positions;

which are relatively small in diameter in com- Fig. '7 is ,a plan viewshowing a modified form parison to the diameter of the plug. Not only ofthe operating mechanism;

do the relatively small diameters facilitate free Fig. 8 is a sectionalelevational view on the movement of the plug with a minimum of fricline8 -t of Fig. '7; and

: tion and operating effort, but the plug is accu- Figs. 9, 10, 11 and12 are diagrammatic plan 3!) rately guided in its reciprocating androtating views showing the operating mechanism of Figs. 3c

movements obviating any dragging tendency of 7 and 8 in variouspositions. p the plug in the body such as would be brought Referring nowtothe drawings, the invention about by unbalanced pressures at oppositesides will be described more in detail. of the plug, which tend to movethe plug from A valve body is represented at 2 and it has acting seatingparts of the plug and body are 2 may take any of .theusual forms soaslto be protected against injury and in the fully open adapted forconnection to a pipeline and it has or fully closed position of theplug, there exists a cover 41 'at its upper end. A cover flange t is. atightly sealed relation between the plug and provided, which may besecured as by bolts (not its true axis of movement. As a result, the 00-ports as shown at its opposite sides. This bodyas Another feature of theinvention is the pro- The body 2 has a bore 'which'is conical in visionof means for reciprocating the plug beshape for receiving a plug 22whichis also conij tween wedged and unwedged positions and for cal. Thecbver, when boltedto the body; forms. rotating the plug in its unwedgedposition. The a fluid-tight compartment. 'In'the'coV r 4 and 47, meansis not only characterized by its novelty, in the body 2, machined'centrally'on the; axis 5 simplicity and eiiiciency, but is arranged toreof the conical plug bore; are bearings, one [6; v leasa-bly lock' theplug in a wedged position. in the lower end ofthe body,. the other M inStill another feature of the invention is the the cover. Mounted inthese hearings are pivots provision of means for enclosing the operatingi8 and 20 associated with the plug 22 whi h are mechanism whereby thesaid mechanism is adecylindrical in shape and capable of both an axial50 quately protected and at the same time readily motion and a rotarymotion. The plug 22 which accessible for removal, repair or maintenanceis conical in shape can be wedged or seated in the purposes without thenecessity of disturbing the conically-shaped bore of the body ,by anaxial plug and associated parts. motion downward and can be unwedged bymeans Another feature of the invention is the easily of an axial motionupward. The plug 22 can be 55 e easily rotated when unwedged as it ismounted on the pivots I8 and 28 which co-act with their .respectivebearings.

The plug in Fig. 1 is shown in the closed position. In order to move theplug 22 so it aligns with the ports in the body 2, the plug is firstgiven an axial motion upward which unwedges it and retracts sealingseats 38 on the plug from the sealing seats 28 in the body.

The plug is restrained to rotative and axial movements due to the pivotsI8 and 28 in bearings l4 and H3. The result is a uniform clearance atall points between the seats on the plug and the seats in the body. Theplug when unwedged may then be rotated until port 24 there-' of alignswith the ports or openings in body 2 and subsequently, the plug is givenan axial motion downward so that theseats around the waterway 2 1 in theplug align and wedge with the seats around the waterway in the body. Thereverse of said action takes place in closing the valve.

The sequence of the movements of the plug just described are given tothe plug by means of an operating mechanism disposed above and acting onthe plug in a chamber 38 in. the cover. Attached to the upper end of theplug above pivot I8 is a stem 48 and near the extreme upper end of thisstem 38 is a rotator lever or arm 88.

The plug 22 with its pivots I8 and 20, together with the stem 48 androtator lever 88, form a rigid unit so that whatever motion is given torotator lever or stem is also given to the plug. Stem 46 extends througha stufiing-box represented by 42 and 44. The stem 46 is the means fofconnecting the operating mechanism in the chamber 38 which is separatefrom the fluidway in which the plug is disposed.

Mounted on cover 4 is a yoke 48 and in yoke 48 is rigidly secured asplit bearing 52. A lifter nut 54 is rotatably mounted in the splitbearing 52 so that the lifter nut 56 is confined to rota tion only.Lifter nut 54 has right-hand threads machined on its inner surface whichco-act with similar threads machined on stem 48. A lifter lever I0 iscentrally located on a part 56 of lifter nut 54 and is rigidly keyedthereto by means of pin I6 and also held from any axial motion by a locknut I3. When lifter nut 56 is given a clockwise rotation and stem 46 isheld from rotation, plug 22, through stem 48, will be elevated andunwedged and when lifter nut 56 is given a counterclockwise rotation andthe stem 48 is held from rotation, plug 22 will be lowered and rewedged.

Referring now to Fig. 3, there is mounted in the chamber 38 of cover 4two guide rods 80. These guide rods may be circular in shape and form aguideway along which a crosshead 64 slides only with a straight linemotion. This crosshead 64 has associated therewith a trunnion I4 on its.bottom and a trunnion 88 on its top. The trunnion" is connected to thelifter lever 10 by means of a link I2. Trunnion 88 includes a rollerwhich acts on and co-operates with rotator lever 80.

V j R0tator51ever80 has two arms 82 and 84 between whichis'a slot 88.Arm 82 has a flat surface 83 which is arranged to be parallel with thegreases screws and lock nuts 82 and 96, adapted to abut stops 98 and 98.v

In Fig. 3, the operating mechanism is shown in plug-closed position. Thecrosshead is at the extreme left. By moving the crosshead there-- fromto the right, the movement being accomplished by a rod 88, roller 88moves parallel to surface 83 of arm 82 of lever 88 therefore said leveris held against rotation and in the position shown, because it isconfined between the roller 88 of crosshead and stop 98. During thismovement of the crosshead, trunnion I4, through link. "I2, rotateslifter lever I0 clockwise and as stem 46 is held against rotation,lifter nut 54 elevates and unwedges plug 22. The further movement of thecrosshead to the right now permits roller 88 to engage arm 84 of lever88 and then by entering slot 88 of rotator lever 88 the said lever iscaused to rotate from the position shown. in Figs. 3 and 4 to theposition in Figs. 5 and 6 thereby rotating plug 22.

During the rotation of lever 88, lifter lever i8 is also rotated andwhen the lever 80 has been rotated through an angle of 90 degrees, thestop screw 94 abuts stop 98. During the latter part of the rotation oflever 80 and as roller 88 emerges from slot 88 thereof the link I2 isgoing through a dead center position wherefor there is very littlerotation of lifter lever l8. When'roller 88 emerges from slot 88 itpasses along surface 85 of arm 84 of lever 88, and the final movement ofthe crosshead to the right moves roller 88 along the said surface 85,maintaining the rotator lever 80 against rotation as it is lockedbetween surface 85 and stop 88.

As roller 88 moves along surface 85 from the position shown in Fig. 5 tothat shown in Fig. 6, and as link 12 has gone through its dead centerposition, this movement of the crosshead reverses the rotation of thelifter lever ID to now rotate it counterclockwise. As rotator lever 88is held rigidly with respect to rotation, the final movement of thecrosshead and counterclockwise rotation of lever I0 rewedges the plug22. The reverse of all this action takes place with the movement of thecrosshead from right to left, or to close the valve.

Reciprocation of the crosshead 84 is shown as being accomplished bymeans of piston rod 68 fiuid being admitted to and discharged from the.

cylinder. The cylinder maybe screwed to the valve structure by a memberI02 and the rod 66 is slidable through a stufling box representedgenerally by H0.

The stop screws 82 and 94 of rotator lever are adjustable permittingeasy alignment of the plug in either its open or closed position: theformer is used for the closed position while the latter is for the openposition, It is very essential that the plug 22 be not wedged with toomuch force and as shown in Fig.2, the travel of the piston I04 may beconfined between stops H2 and I I4 in its closed and open position. Bymeans of nuts I20 on rod 66 the position of the crosshead 84 in both itsopen and closed positions can be definitely and easily adjusted as themovement of the crosshead at this point does not affect rotator lever-"but does affect lifter lever 10.

According to the preferred form of the invention, a part 41 extendsupwardly from stem 46 and projects through a cover member 40. A pointermember 49 is affixed to the outer end of the part 41 and this memberco-operates with a suitable scale (not shown) on the cover 40 toindicate the position of the plug.

The modified form of operating mechanism shown in Figs. 7 to 12 will'nowbe described.

A plug-stem threaded, as shown, is represented at I30 which is similarto that already described. A split bushing or bearing I32 is carriedflbya casing or part I34 and a nut I36 threadedly enaxial movement.

A rotator lever I42 is fixed to the stem I and as the stem is elevatedand lowered to move the plug up and down the said lever moves up anddown with it. A lifter lever I44 is disposed on part I38 of the nut I 6and may be secured against rotation relative thereto by a pin I46. A nutI48 serves to hold the lever I44 on the part I38.

As in the former case when the lever I44 is rotated in one direction orthe other to rotate ,nut I36 the stem is raised and lowered by means torotate the plug between its-open and closed positions. a

A fork-like member I50 having upper and lower arms I52 and I54 ispivoted at I56 to the casing. A roll I58 is pivoted at i59 to the armsof the fork I50 at their outer ends which is disposed in a slot I60 ofrotor lever I02. Thesaid slot has a wider outer portion I62, as shown. Alink I64 is pivoted at I59 to the fork and at I66 to lifter lever I44,whereby lifter'lever is actuated by swinging movements of the fork.

A rod I 68 is arranged for reciprocation simi larly to rod 66 alreadydescribed and a member rotor arm M2 is arranged to abut a stop i16 whenthe lever I42 is in plug closed position. A similar screw I18 isarranged to abut a stop I80 when the arm M2 is in plug open position. Bymeans of the screws the limit of movement of the lever I42 may be madeto position the plug accurately in its open or closed position. L Astherod I68 moves to the right from the position shown in Fig. '7 to theposition shown in I Fig'rQfthefork 150' is swung counterclockwiseswinging lifterllever I44 clockwise, rotating nut i38 and elevating thestem I30 and plug to move 70i it from wedgedpositic-na During'thismovement ofthe fork the rotor lever I42 is held against stop I16 andprevented from rotation by roller I58 of fork I50 which traverses a sideI6I of the slot of said lever.

The continual counterclockwise rotation of'the As rotator lever I42 isrotated in one v r direction or the other the stem is rotated therebyfork I50 from the position shown in Fig. 9 causes the roll I58 to enterthe narrow part of the slot I60 ofrotator lever I42 whereupon said rotorlever I42 is rotated clockwise, from the position shown in Fig. 9 tothat in Fig. 11 to thereby rotate stem and the plug from its closed toopen tion of the lifter lever I44.

When the rotator lever I42 is in plug open position, that shown in Fig.11, the stop screw I18 abuts stop I80 and as fork I42 completes itsmovement counterclockwise, from the position of Fig. 11 to that of Fig.12, the roller I58 of the fork now traverses side I63 of the slot oflever I42. The roll I58 and stop screw I10 hold the lever I42 againstmovement while the lifter lever' I44 is .now rotated counterclockwise torotate nut I36 and bring about lowering of the stem and rewedging of theplug in its open position.

As rod I68 is moved to the left to swing fork I50 clockwise the lifterlever I44 is rotated to move the plug from its wedged position, duringwhich time the rotor lever' is being held against rotation. When theplug has been elevated to unwedged position the rotor lever is rotatedto rotate the stem and plug to closed position and then finally the stemis lowered tomove the plug to its wedged position.

While we have described the invention in great detail with respect to apreferred form thereof,

it is not desired to be'limited thereto sincemany changes andmodifications may be made therein without departing from the spirit andscope of the invention. What it is desired'to claim and secure byLetters Patent of the United States is:

1. The combination of a plug reciprocable and rotatable in a body andhaving a stem with operating means therefor comprising, anoperatingmember guided for reciprocating movements between plug closed and openpositions, a rotatable lifter lever threadedly associated with saidstem, connections between the lever and operating member whereby thelever is rotated by the said member, a second lever fixed to said stemhaving diverging arms, means on said operating member to engage saidarms whereby the second lever is swung thereby, alladapted and arrangedwhereby as the operating member is moved from a plug closed to openposition the lifter lever is first rotated to unseat said plug and thenthe said second lever is actuated to rotate the plug to open positionand finally the lifter lever is rotated reversely to seated position.

2. A plug valve comprising a valve casing, a tapered plug seatedtherein, a lever connected to the plug for turning 'it to and'from openand closed positions, actuatingmeans for moving the lever and includinga pin reciprocable in a substantially straight line, the lever beingprovided with a. three-leg slot for receiving the pin, a leg of the slotlying in the path of movement of the pin at each end of said pathwhereby idle play is afforded between the pin and lever for the extremeportions of the movement of the actuating means, the remaining leg ofthe slot being disposed at an angle to said path of movement to permitthe lever to be moved by the pin, and means operative by said actuatingmeans during said idle play for moving the plug axially from its seatpreliminary to its being turned.

3. A plug valve apparatus comprising in combination, a casing having atapered plug bore, a

plug in said bore arranged for reciprocation be tween seated andnon-seated positions and for rotation between open and closed positionsrelative to said bore, a rotating lever for rotating said plug, areciprocating lever and connections for reciprocating said plug,operating means for r0 tating and reciprocating said plug including apart movable between valve open and valve closed positions, connectionsbetween said movable part and said reciprocating lever, the saidrotating lever being provided with separate surfaces en gageable by themovable part, the said connections and separate surfaces beingrelatively ar ranged so that as the movable part moves from valve closedposition to valve open position the reciprocating lever is firstoperated to move the plug to non-seated positions, and then the rotatinglever. is rotated to rotate the plug to open position and finally thereciprocating lever is operated to seat said plug with the rotatinglever held against substantial movement while the reciprocating lever isoperated whereby the plug is rotated only when removed from seatedposition.

4. A plug valve apparatus comprising in combination, a casing having atapered plug bore, a plug in said bore arranged for reciprocationbetween seated and non-seated positions and for rotation between openand closed positions relative to said bore, a rotating lever forrotating said plug, a reciprocating lever and connections forreciprocating said plug, operating means for rotating and reciprocatingsaid plug including a part movable between valve open and valve closedpositions, connections between said movable part and said reciprocatinglever, the said rotating lever being provided with separate surfacesengageable by the movable part, the said connections and separatesurfaces being relatively arranged so that as the movable part movesfrom valve closed position to valve open position the reciprocatinglever is first operated to move the plug to non-seated positions, andthen the rotating lever is rotated to rotate the plug to open positionand finally the reciprocating lever is operated to seat said plug withthe rotating lever held against substantial movement while thereciprocating lever is operated whereby the plug is rotated onlywhenremoved from seated position, the said connections including a linkpivotally connected to said reciprocating lever and movable part.

. 5. A plug valve apparatus comprising in combination, a casing having atapered plug bore, a plug in said bore arranged for reciprocationbetween seated and non-seated positions and for rotation between openand closed positions relative to said bore, a rotating lever forrotating said plug, a reciprocating lever and connections forreciprocating said plug, operating means for rotating and reciprocatingsaid plug including a part movable between valve open and valve closedpositions, connections between said movable part and said reciprocatinglever, the said rotating lever being provided with separate surfacesengageable by the movable part, the said connections and separatesurfaces being relatively arranged so that as the movable part movesfrom valve closed position to valve open position the reciprocatinglever is first operated to move the plug to non-seated position, andthen the rotating lever is rotated to rotate the plug to open positionand finally the reciprocating lever is operated to seat said plug withthe rotating lever held against substantial movement while the re- Iciprocating lever is operated whereby the plug is rotated only whenremoved from seated position, the said separate surfaces being formed byparts of the rotating lever spaced from one another.

6. A plug valve apparatus comprising in combination, a casing having atapered plug bore, a

plug in said bore arranged for reciprocation be tween seated andnon-seated positions and for rotation between open and closed positionsrelative to said bore, a rotating lever for rotating said plug, areciprocating lever and connections for reciprocating said plug,operating means for rotating and reciprocating said plug including anactuating part movable between valve open and valve closed positions,connections between said movable part and said reciprocating lever, thesaid rotating lever having one part in the path of movement of theactuating part at each end of its path whereby idle play is afiordedbetween said part and lever for the extreme portions 01" the movement ofthe actuating part and another part spaced from said one part to permitthe lever to be moved by said actuating part, the said connections beingarranged whereby the plug is reciprocated from its seat during said idleplay preliminary to its being rotated.

7. A valve apparatus comprising in combination, a casing having atapered plug bore, ports and upper and lower bearings, a ported taperedplug in said bore having pivots in said. bearings adapted forreciprocating and rotating movements whereby the plug may in closedposition move axially to unseated position, rotate to open position.with the port thereof aligned with the casing ports, move axially toseated position and move axially and rotate in reverse direction toclosed position, operating mechanism including, a power memberreciprocable in a straight line, a member guided in a definite pathactuated thereby, a plug rotating member non-rotatable relative to saidplug actuated by and cooperating with said guided member and" rotatableon a fixed axis, engageable stop means to limit rotation thereof, meanscooperating with said plug for positively reciprocating the same inopposite directions, operative connections between said guided memberand reciprocating means, said plug rotating member and guided memberbeing arranged whereby during the intermediate portion of the movementof the latter the former is rotated and dwells during the initial andfinal movements thereof with the stop means in engagement, and the saidreciprocating means and connections being arranged whereby the plug isreciprocated while the rotating member dwells.

8. A valve apparatus comprising in combination, a casing provided with atapered plug bore having its larger end uppermost and ports and upperandlower bearings, a ported tapered plug in said bore having pivots insaid bearings adapted for reciprocating and rotating movements wherebythe plug may when in closed position move axially to unseated position,rotate to open position with the port thereof aligned with the casing Iports, move axially to seated positionand move axially and rotate inreverse direction to closed position, operating mechanism at. theuppermost end. of. the plug including, a power member reciprocable in a.straight line, a member guided in a definite path actuated thereby, aplug rotating member non-rotatable relative to said plug actuated by andcooperating with said guided member and rotatable on a fixed axis whenrotating said plug, engageable stop means to limit rotation thereof;means cooperating with the said plug for positively reciprocating thesame in opposite is rotated and dwells during the initial and finalmovementsthereof with the stop means in engagement, and the saidreciprocating means and connections being arranged whereby the plug isreciprocated while the rotating member dwells.

DAVID D. GOLDBERG. AARON R. KLIGMAN.

